v3.25.4
Earnings per share
 3 Months Ended
Dec. 31, 2025
Earnings Per Share [Abstract]  
Earnings per share Earnings per share
Basic earnings per share is based on the average number of common shares outstanding during the period. Diluted earnings per share is based on the average number of shares used for the basic earnings per share calculation, adjusted for the dilutive effect of restricted stock unit (RSU) awards, performance share awards and deferred compensation equity plans.

The following table sets forth the computation of basic and diluted earnings/(loss) per share for the quarters ended December 31, 2025 and 2024:
(in millions, except per share data)For the Quarters Ended December 31,
Basic net earnings per share20252024
Net (loss)/earnings$(3.4)$22.3 
Weighted average common shares outstanding - Basic68.4 72.0 
Basic net (loss)/earnings per common share$(0.05)$0.31 
Diluted net earnings per share
Weighted average common shares outstanding - Basic68.4 72.0 
Dilutive effect of RSU awards— 0.5 
Dilutive effect of performance shares— 0.7 
Weighted average common shares outstanding - Diluted68.4 73.2 
Diluted net (loss)/earnings per common share$(0.05)$0.30 

For the quarter ended December 31, 2025 there were 1.6 million RSU shares and 1.6 million performance based RSU shares that were excluded from the diluted net earnings per share calculation due to the Company's net loss.
For the quarter ended December 31, 2024, there were no antidilutive RSU shares and 0.9 million performance based RSU shares were excluded for the quarter ended December 31, 2024, as the performance targets for those awards had not been achieved as of the end of the applicable period.